MBT0005

micro: IO-BOX is a micro:bit multifunctional expansion board with on-board Li-ion battery power, delicate appearance and easy to use. Features numerous functions on the 6cm x 6cm board such as 2-way driver motor, 9-way IO port, 2-way I2C port, 1-way serial port, 1-way buzzer, 4-way RGB LED, Li-ion battery box, charge circuit and emergency power interface. Also features short circuit and reverse connection protection for it to further improve the safety in using Li-ion battery. In order to provide a stable power supply, the board employ high cost boost-buck power management solution. As a motor’s instantaneous current can reach up to 1A at its starting instant which is a big challenge for power supply. So the board carried out a strict test on our product and two TT motors keep rotating forward and reversely continuously and even in such a condition, board and motor can still work about 1.5 hours until running out of the battery.

• CR123A Li-ion battery with 1000mA current rating
• 3.7V to 5V external power supply
• microUSB 5V Support computer USB charging and cell phone charger
• 3V to 6V supported motor voltage
• 4.5 to 5.5V supply voltage range
• One power switch, 350mA charging current, 2.5h charging time
• Digital output voltage of 0V/3.3V, analogue input voltage of 0 to 3.3VDC
• On-board buzzer (1-way(PO)), one buzzer switch, on-board RGB: 4 WS2812B (P15)
• 2-way (I2C) motor interface, 9-way Micro: bit interface, 2 way I2C Interface
• Dimension is 61mm x 61mm / 2.40 x 2.40”